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Electron-Phonon Coupling and the Metalization of Solid Helium at Terapascal Pressures

Overview of attention for article published in Physical Review Letters, February 2014
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (89th percentile)
  • Good Attention Score compared to outputs of the same age and source (66th percentile)

Mentioned by

blogs
1 blog
twitter
7 tweeters

Readers on

mendeley
47 Mendeley
Title
Electron-Phonon Coupling and the Metalization of Solid Helium at Terapascal Pressures
Published in
Physical Review Letters, February 2014
DOI 10.1103/physrevlett.112.055504
Pubmed ID
Authors

Bartomeu Monserrat, N. D. Drummond, Chris J. Pickard, R. J. Needs

Abstract

Solid He is studied in the pressure and temperature ranges 1-40 TPa and 0-10 000 K using first-principles methods. Anharmonic vibrational properties are calculated within a self-consistent field framework, including the internal and free energies, density-pressure relation, stress tensor, thermal expansion, and the electron-phonon coupling renormalization of the electronic band gap. We find that an accurate description of electron-phonon coupling requires us to use a nonperturbative approach. The metallization pressure of 32.9 TPa at 0 K is larger than found previously. The vibrational effects are large; for example, at P=30  TPa the band gap is increased by 2.8 eV by electron-phonon coupling and a further 0.1 eV by thermal expansion compared to the static value. The implications of the calculated metallization pressure for the cooling of white dwarfs are discussed.

Twitter Demographics

The data shown below were collected from the profiles of 7 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 47 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 2 4%
Japan 2 4%
Spain 1 2%
Germany 1 2%
Switzerland 1 2%
France 1 2%
China 1 2%
United States 1 2%
Unknown 37 79%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 14 30%
Researcher 10 21%
Professor > Associate Professor 6 13%
Professor 4 9%
Student > Master 4 9%
Other 9 19%
Readers by discipline Count As %
Physics and Astronomy 33 70%
Materials Science 6 13%
Unspecified 3 6%
Chemistry 3 6%
Agricultural and Biological Sciences 2 4%
Other 0 0%

Attention Score in Context

This research output has an Altmetric Attention Score of 11. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 04 July 2018.
All research outputs
#1,055,009
of 11,454,743 outputs
Outputs from Physical Review Letters
#3,908
of 21,093 outputs
Outputs of similar age
#16,065
of 158,832 outputs
Outputs of similar age from Physical Review Letters
#87
of 263 outputs
Altmetric has tracked 11,454,743 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 90th percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 21,093 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 11.4. This one has done well, scoring higher than 81% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 158,832 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 89% of its contemporaries.
We're also able to compare this research output to 263 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 66% of its contemporaries.